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Finding the Fourth Proportional to 321,237.50, 443,310.37 and 177,999.93

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Solution

The fourth proportional to 321,237.50, 443,310.37 and 177,999.93 is: 245,641.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,237.50 : 443,310.37 = 177,999.93 : x
  2. Step 2: Convert to fraction form
    321,237.50/443,310.37 = 177,999.93/x
  3. Step 3: Cross multiply
    321,237.50x = 443,310.37 × 177,999.93
  4. Step 4: Simplify right side
    321,237.50x = 78,909,214,383.27
  5. Step 5: Solve for x
    x = 78,909,214,383.27/321,237.50
  6. Step 6: Final answer
    x = 245,641.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.